really need this answered pls. it's the last thing I need to bring my grade up.

b=7/3-8a/3

I used this app called math (way) hopefully its correct

Answer:

Okay I'm not sure this is correct, but I would like to try.

I think the answer is -15.

Step-by-step explanation:

I'm not to good at doing these problems, what I did was do 50 - 65 = ?

and I got -15.

I hope I helped! :)

Answer:

x= -5

Step-by-step explanation:

Plug in 34 to k(x) and solve for x

34=-7x-1

35=-7x

x= -5

I hope this helps you!!!

Answer:

ok but with what

Step-by-step explanation:

Answer:

i go to k12 we got the same sience class want to be pen pals? we help eachother

Step-by-step explanation:

Answer:

Slope= 3/5

y-intercept= -3

Step-by-step explanation:

Answer:

A $1.50

Step-by-step explanation:

If 3 pens is $4.50, thats 3.5x = 4.5 and x = 1.5 or $1.50 per pen

If 5 pens is $7.50, that's also $1.50 per pen

A quadratic equation like [tex]ax^2+bx+c[/tex] has a minimum if [tex]a>0[/tex] and a maximum if [tex]a<0[/tex] as critical points.

In both cases, the critical point has [tex]x[/tex] coordinate [tex]-\frac{b}{2a}[/tex]

In your case, we have [tex]a=0.01>0[/tex], so the parabola has indeed a minimum, located at

[tex]x=-\dfrac{-7}{0.01}=700[/tex]

Answer/Step-by-step explanation:

✔️Sin 22° = opp/hyp

Opp = 15

Hyp = 40

Sin 22° = 15/40

Simplify

Sin 22° = ⅜

✔️Tan 22° = opp/adjacent

opp = 15

Adjacent = √(40² - 15²) (pythagorean theorem)

Adjacent = √1,375 = 37.1 (nearest tenth)

Tan 22° = 15/37.1

Answer:

A.

Step-by-step explanation:

Answer:

C. 20480

Step-by-step explanation:

so the equation is (60x3) divided by 15 because there are 3 minutes and 60 seconds in each minute and the bacteria doubles every 15 seconds so when you get your answer (12) that is how many times you will double 5.

Answer:

The slope of any horizontal line is 0!

Step-by-step explanation:

Answer:

20% discount

Step-by-step explanation:

300 - 240 = 60

60 / 300 = 0.20

0.20 × 100 = 20

Answer:

Step-by-step explanation:

The two x intercepts are

x -  7 = 0

x = 7

x + 3= 0

x = - 3

The y intercept is just - 7 * 3 = - 21

To prove this  more formally

f(x) = (x - 7)(x + 3)

f(x) = x^2 - 7x + 3x - 21

f(x) = x^2 - 4x - 21

Answer:

[tex]x = 112[/tex]

Step-by-step explanation:

Required

Find x

The given shape is a quadrilateral and the angles add up to 360;

So:

[tex]x + 49 + 111 + 88 = 360[/tex]

[tex]x + 248= 360[/tex]

Subtract 248 from both sides

[tex]x + 248-248= 360-248[/tex]

[tex]x = 360-248[/tex]

[tex]x = 112[/tex]

Hence, the measure of x is 112

Answer:

The solution is x = -2 and y = 2.

Step-by-step explanation:

Given that:

14y - 8x = 44      Eqn 1

-7y = -x - 16       Eqn 2

In elimination method, you try to eliminate one variable in the equation by adding or subtracting.

Multiplying Eqn 2 by 2

2(-7y = -x - 16)

-14y=-2x-32

-14y+2x= -32    Eqn 3

Adding Eqn 1 and 3

(14y-8x)+(-14y+2x)=44+(-32)

14y-8x-14y+2x=44-32

-6x=12

Dividing both sides by -6

[tex]\frac{-6x}{-6}=\frac{12}{-6}\\x=-2[/tex]

Putting x=-2 in Eqn 2

-7y=-(-2)-16

-7y=2-16

-7y=-14

Dividing both sides by -7

[tex]\frac{-7y}{-7}=\frac{-14}{-7}\\y=2[/tex]

Hence,

The solution is x = -2 and y = 2.

Answer: 5 1/2 hours

Step-by-step explanation:

1 hour = 12 miles

2 hours = 24 miles

3 hours  =36 miles

4 hours = 48 miles

5 hours = 60 miles

6 hours = 72 miles

66- 60 = 6. 6 is half of 12.

In conclusion, it will take Tavyon 5 1/2 (or 5.5) hours to bike 66 miles.

Hope this helps!

Answer:

the width of the rectangle is ten

Step-by-step explanation:

if the length of the rectangle is 20 you would have to add 20+20 which is 40. now you have to subtract 64 by 40 which gives you 20 then divide by 2. this should give you the width, which is 10.

Step-by-step explanation:

Since (-3) < 3(1) + 1 is true, option C is correct.

Answer:

-3

Step-by-step explanation:

Answer:

We conclude that

[tex]3^{-3}\times \:8^{-6}=\frac{1}{8^6\times \:\:3^3}[/tex]    

Step-by-step explanation:

Given the expression

[tex]3^{-3}\times \:8^{-6}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}[/tex]

[tex]3^{-3}\times\:8^{-6}=8^{-6}\times \:\frac{1}{3^3}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}[/tex]

                  [tex]=\frac{1}{3^3}\times \frac{1}{8^6}[/tex]

[tex]\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}[/tex]

                  [tex]=\frac{1\times \:1}{3^3\times \:8^6}[/tex]

                  [tex]=\frac{1}{8^6\times \:3^3}[/tex]

Therefore, we conclude that

[tex]3^{-3}\times \:8^{-6}=\frac{1}{8^6\times \:\:3^3}[/tex]                  

Answer:

Step-by-step explanation:

When finding the volume, we multiplied the 3 dimensions with degree of 1, 1 and 3 and got the binominal of degree 5. We summed up the degrees: 1 + 1 + 3 = 5.

Answer:

sum

Step-by-step explanation:

Answer:

y=1/2x

Step-by-step explanation:

Answer:

$234

Step-by-step explanation:

Let x be the money made in sales. Let y be the commission.

First, convert 13% to a decimal.

13% = 0.13

Make your equation:

0.13x = y

Plug in the value of sales for x.

0.13(1800) = y

y = $234

Answer:

[tex]\boxed{12}[/tex]

Step-by-step explanation:

A = 30° and r = 12

[tex]\sin A = \frac{r}{r + x}[/tex]

[tex]\sin 30 = \frac{12}{12 + x}[/tex]

[tex]\frac{1}{2} = \frac{12}{12 + x}[/tex]

[tex]1(12 + x) = 2(12)[/tex]

[tex]12 + x = 24[/tex]

[tex]x = 24 - 12[/tex]

[tex]x = 12[/tex]

.

Happy to help :)

Answer:

the answer is 12

Step-by-step explanation:

hope this help